An N-doped mesoporous carbon supported Ni nanoparticle nanocatalyst (Ni/m-CN) was prepared in a facile manner by the carbonization of Ni-MOFs. The Ni/m-CN nanocatalyst exhibited excellent catalytic activity for the reduction of nitroarenes under mild conditions. Moreover, the Ni/m-CN nanocatalyst can also be easily recovered and reused due to its superparamagnetism.